EOP

EOP may refer to:


 * Earth orientation parameters
 * Electroosmotic pump
 * Emergency operations plan (US)
 * European Opera-directing Prize
 * Exchange Online Protection, part of Microsoft's Exchange Online family
 * Executive Office of the President of the United States
 * External occipital protuberance
 * Hellenic Cycling Federation, the governing body of cycle racing in Greece
 * Early Oil Project, the development of the Chirag oilfield
 * Enhanced opportunity partner, NATO Enhanced Partnership Opportunities interoperability program
 * Escalation of Privilege, a cybersecurity threat
 * Endrogenous opioid peptides